【计】 光线追踪
【化】 光线追迹

ray tracing apparatus tracing ray Ray contour tracing tracing box tracing machine tracing stylus tracing feed tracing pen tracing instrument paraxial ray tracing ray tracing calculation tangential close ray tracing holographic ray-tracing equation trigonometric ray tracing three-dimensional ray tracing ray tracing formulas pseudo ray tracing generalized vector grating ray-tracing equation